#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define f first
#define int long long
#define s second
#define pii pair<int,int>
template<class T>bool umax(T &a,T b){if(a<b){a=b;return true;}return false;}
template<class T>bool umin(T &a,T b){if(b<a){a=b;return true;}return false;}
typedef tree<int, null_type, less_equal<int>, rb_tree_tag,
tree_order_statistics_node_update> ordered_set;
const int N = 1e6 + 5;
const int inf = 1e17 + 7;
const int mod = 1e9 + 7;
int n,m,k;
vector<int>ans,a;
void solve(){
cin >> n >> m >> k;
for(int i = 2;i<=n;i++){
int b;
cin >> b;
}
vector<int>g(n+1);
for(int i = 0;i<m;i++){
int b,c,d;
cin >> b >> c >> d;
g[b] = c;
}
for(int i = 1;i<=n;i++){
if(g[i] == 0)continue;
a.pb(-g[i]);
}
for(int i = 0;i<a.size();i++){
int l = 0, r = ans.size()-1, as = -1;
while(l<=r){
int mid = (l+r)/2;
if(ans[mid]>=a[i])r = mid - 1;
else{
l = mid + 1;
as = mid;
}
}
if(as != -1){
ans[as] = a[i];
}
else ans.pb(a[i]);
}
cout << ans.size()<<"\n";
//~ for(auto to:ans)cout << -to << " ";
}
/*
6 6 2
1
2
3
4
5
1 1 1
2 2 2
3 3 1
4 4 2
5 5 2
6 6 1
// Success consists of going from failure to failure without loss of enthusiasm
// Problems means that you are trying
// Soberis dolboyeb
*/
signed main()
{
// freopen("seq.in", "r", stdin);
// freopen("seq.out", "w", stdout);
ios_base::sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL);
int tt=1;//cin>>tt;
while(tt--)solve();
}
Compilation message
magictree.cpp: In function 'void solve()':
magictree.cpp:48:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
48 | for(int i = 0;i<a.size();i++){
| ~^~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
12 ms |
1628 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
25 ms |
3276 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
600 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
